component
EA2224
Public Unreviewedby Ray
Everanalog IC design DC-DC Converters, TDFN-14-EP(3x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownEA2224
Everanalog IC design · DC-DC Converters · TDFN-14-EP(3x4)
EA2224 from Everanalog IC design, in a TDFN-14-EP(3x4). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VINA | power_in | IC analog power supply input, 2.7V to 5.5V operating range. Powers the internal control/logic; typically tied to VIN through a small RC filter. |
| 2 | GND | power_in | Chip analog ground reference for the control circuitry. |
| 3 | FB | input | Voltage feedback input. For adjustable versions, connect to an external divider (VFB = 500mV typical); for fixed 3.3V versions, tie directly to VOUT. |
| 4 | VOUT | power_out | Power output of the Buck-Boost converter, 2.8V to 5.5V (or fixed 3.3V). Pins 4 and 5 must be tied together and bypassed with output capacitors. |
| 5 | VOUT | power_out | Power output of the Buck-Boost converter (paralleled with pin 4 for current handling). |
| 6 | LXU | passive | Inductor switch node on the up-converter (boost) side. Pins 6 and 7 must be tied together and connected to one terminal of the external inductor. RON typ 50mΩ. |
| 7 | LXU | passive | Inductor switch node on the up-converter (boost) side (paralleled with pin 6). |
| 8 | LXD | passive | Inductor switch node on the down-converter (buck) side. Pins 8 and 9 must be tied together and connected to the other terminal of the external inductor. RON typ 50mΩ. |
| 9 | LXD | passive | Inductor switch node on the down-converter (buck) side (paralleled with pin 8). |
| 10 | VIN | power_in | Power input of the Buck-Boost converter, 2.7V to 5.5V. Pins 10 and 11 must be tied together and bypassed with input capacitors. |
| 11 | VIN | power_in | Power input of the Buck-Boost converter (paralleled with pin 10 for current handling). |
| 12 | EN | input | Enable input (1 = enabled, 0 = disabled). VIH >= 1.2V, VIL <= 0.4V. Must not be left open. |
| 13 | PS/SYNC | input | Dual-function control: Power-Save mode select (1 = disabled/FPWM, 0 = enabled) OR external clock input for synchronization (4.4-5.2MHz range). Must not be left open. |
| 14 | PWRGD | output | Power Good indicator, open-drain output (1 = good, 0 = failure). Asserts when VOUT >= ~95% of VOUT,SET; requires external pull-up. |
| 15 | PGND | power_in | Power ground of the Buck-Boost converter (exposed thermal pad). Must be soldered to a large PCB copper area connected to PGND for maximum power/thermal dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Everanalog IC design |
| Package | TDFN-14-EP(3x4) |
| Category | PMIC |
| Pins | 15 |
Ordering variants
Same part, different packaging or reel option.
EA2224K
CAD (KiCad official)
- Symbol:
EA2224 - Footprint:
Package_DFN_QFN:DFN-14-1EP_3x4mm_P0.5mm_EP1.7x3.3mm - 3D model: TDFN-14-EP(3x4) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Everanalog IC design datasheet (12 pp, sha256
46f42b31d1738b26, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).